mirror of
https://github.com/fail0verflow/switch-coreboot.git
synced 2025-05-04 01:39:18 -04:00
d44bf71932
built. Instead of having a bootblock and a lar archive, the bootblock is now part of the archive: $ lar -l build/linuxbios.rom normal/initram (93 bytes @0x24) normal/payload (32768 bytes @0xb4) normal/stage2 (32028 bytes @0x80e4) linuxbios.bootblock (16384 bytes @0x3c000) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@240 f3766cd6-281f-0410-b1cd-43a5c92072e9
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/*
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* lar - LinuxBIOS archiver
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*
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* Copyright (C) 2007 coresystems GmbH
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* Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "lar.h"
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#include "lib.h"
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char *bootblock_code;
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int bootblock_len;
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int load_bootblock(const char *bootblock)
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{
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struct stat statbuf;
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int ret, filelen;
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FILE *fh;
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ret = stat(bootblock, &statbuf);
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if (ret) {
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fprintf(stderr, "No such file %s\n", bootblock);
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exit(1);
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}
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bootblock_len = statbuf.st_size;
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/* We might want to find additional criteria
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* for identifying a bootblock file
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*/
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if (bootblock_len != BOOTBLOCK_SIZE) {
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printf("Warning: %s does not seem to be a bootblock, "
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"so ignore it\n", bootblock);
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bootblock_code=NULL;
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bootblock_len=0;
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// Is this an error condition?
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}
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bootblock_code = malloc(bootblock_len);
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if (!bootblock_code) {
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fprintf(stderr, "Out of memory.\n");
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exit(1);
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}
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fh = fopen(bootblock, "r");
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if (!fh) {
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fprintf(stderr, "Error while reading file %s\n", bootblock);
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exit(1);
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}
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fread(bootblock_code, bootblock_len, 1, fh);
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fclose(fh);
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return ret;
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}
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int fixup_bootblock(void)
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{
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/* Per definition the bootblock starts with 256 empty bytes.
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* These are utilized to make the bootblock part of a lar file,
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* and store the image size.
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*
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* We will also calculate a checksum here.
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*/
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/* first try. Clear out ugly left-over from ld hack */
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bootblock_code[bootblock_len - 13] = '\0';
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bootblock_code[bootblock_len - 12] = '\0';
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return 0;
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}
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